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authorRickard Green <[email protected]>2011-03-10 14:29:59 +0100
committerRickard Green <[email protected]>2011-03-10 14:29:59 +0100
commit0213def22b5ab6f145a5529f9bbef0d26124abaf (patch)
tree5c47bce2d933052236bc7b9f9b4253d2489f3557 /erts/emulator/beam/erl_process.h
parent839e24abdcc3e5a16ac78eb45e09736370e596fe (diff)
parenta37ee29884eaaf8b177cec19821159c938ddf6ff (diff)
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Merge branch 'rickard/scheduler-wait/OTP-9105' into dev
* rickard/scheduler-wait/OTP-9105: The emulator could get into a state where it didn't check for I/O.
Diffstat (limited to 'erts/emulator/beam/erl_process.h')
-rw-r--r--erts/emulator/beam/erl_process.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index e871a9834a..8f78a7d76e 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -1592,7 +1592,9 @@ ERTS_GLB_INLINE void erts_sched_poke(ErtsSchedulerSleepInfo *ssi);
ERTS_GLB_INLINE void
erts_sched_poke(ErtsSchedulerSleepInfo *ssi)
{
- erts_aint32_t flags = erts_smp_atomic32_read(&ssi->flags);
+ erts_aint32_t flags;
+ ERTS_THR_MEMORY_BARRIER;
+ flags = erts_smp_atomic32_read(&ssi->flags);
ASSERT(!(flags & ERTS_SSI_FLG_SLEEPING)
|| (flags & ERTS_SSI_FLG_WAITING));
if (flags & ERTS_SSI_FLG_SLEEPING) {